1. See Siegfried Kracauer, History. The Last Things before the Last (New York: Oxford University Press, 1969), v- xi.
2. Paul Oskar Kristeller, Marsilio Ficino and His Work afier Five Hundred Years (Florence: Leo S. Olschki, 1987), 18.
3. See Helmuth Lethen, Cool Conduct. The Culture of Distance in Weimar Germany (Berkeley, Los Angeles: University of California Press, 2002).
4. Paul Oskar Kristeller, Der Begriff der Seele in der Ethik des Plotin (Tübingen: Mohr, 1930).
5. Richard Wolin, Heidegger’s Children. Hannah Arendt, Karl Löwith, Hans Jonas, and Herbert Marcuse (Princeton: Princeton University Press, 2001), 9.